And I am not certain the problem is with the fieldMapping parameter I just read the exception and saw the problem was with a NSDictionary object. However it breaks while the code is executing the Backendless API so I am unable to confirm that theory.

I have tried setting the parameter to nil but it has not fixed the situation.

The problem appears to be the same as the one mentioined in the other thread but restarting my computer did not fix it.